1162311217 has 2 divisors, whose sum is σ = 1162311218. Its totient is φ = 1162311216.

The previous prime is 1162311089. The next prime is 1162311221. The reversal of 1162311217 is 7121132611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1144536561 + 17774656 = 33831^2 + 4216^2 .

It is an emirp because it is prime and its reverse (7121132611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1162311217 - 2⁷ = 1162311089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1162311191 and 1162311200.

It is not a weakly prime, because it can be changed into another prime (1162311247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 581155608 + 581155609.

It is an arithmetic number, because the mean of its divisors is an integer number (581155609).

Almost surely, 2^1162311217 is an apocalyptic number.

It is an amenable number.

1162311217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1162311217 is an equidigital number, since it uses as much as digits as its factorization.

1162311217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 25.

The square root of 1162311217 is about 34092.6856818292. The cubic root of 1162311217 is about 1051.4149380833.

Adding to 1162311217 its reverse (7121132611), we get a palindrome (8283443828).

The spelling of 1162311217 in words is "one billion, one hundred sixty-two million, three hundred eleven thousand, two hundred seventeen".